System for substituting television programs transmitted via tele

Details System for substituting television programs transmitted via tele System for substituting television programs transmitted via tele

1988-10-11

1989-12-19

George, Keith E.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 85, 455 2, H04H 900

Patent

active

048886386

ABSTRACT:
A market research system is shown for substituting stored television programs for regularly scheduled, broadcast television programs having a particular identification code wherein the substitute television programs may be transmitted via telephone lines to the households of cooperating panelists for storage. The substitute television programs may be stored and/or transmitted to the panelists's home in compacted or noncompacted form. In compacted form, a memory stores the first frame of video information for the substitute television program and for subsequent frames, stores only the video information representing a change from the video information stored for a previous frame. In one embodiment, the stored video information represents the difference between each frame and the first frame. In a second embodiment, the video change information represents the differences between each frame and the immediately preceding frame. A system for encoding an identification code in the leading overscan portion of the active line period of a horizontal line of video information is also shown.

REFERENCES:
patent: 3639686 (1972-02-01), Walker et al.
patent: 4331973 (1982-05-01), Eskin et al.
patent: 4331974 (1982-05-01), Cogswell et al.
patent: 4404589 (1983-09-01), Wright, Jr.
patent: 4546382 (1985-10-01), McKenna et al.
patent: 4566030 (1986-01-01), Nickerson et al.
patent: 4630108 (1986-12-01), Gomersall
patent: 4724491 (1988-02-01), Lambert
patent: 4733301 (1988-03-01), Wright, Jr.
patent: 4805020 (1989-02-01), Greenberg
patent: 4814883 (1989-03-01), Perine et al.

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